JEE Mains · Chemistry · STD 12 -8.1. Aldehydes and ketones
Given below are two statements :
Consider the following reaction
- A Both Statement I and Statement II are false
- B Statement I is true but Statement II is false
- C Statement I is false but Statement II is true
- D Both Statement I and Statement II are true
Answer & Solution
Correct Answer
(D) Both Statement I and Statement II are true
Step-by-step Solution
Detailed explanation
\(\mathrm{k}_{\mathrm{eq}}=2280\) is for HCHO \(\mathrm{k}_{\text {eq }}=2000\) is for chloral Both data is given in clayden and warren book. \(\mathrm{k}_{\mathrm{eq}}>1\) because HCHO and chloral are more electrophilic.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
-
Figure 1. electron
Figure 2. wave function for 2s orbital
Which of the following point in Figure 2 mostaccurately represents the nodal surface as shown in Figure 1 ?JEE Mains 2026 Hard - Identify the incorrect statement from the following :JEE Mains 2021 Medium
- \(17.0\, g\) of \(NH _{3}\) completely vapourises at \(-33.42^{\circ} C\) and \(1\, bar\) pressure and the enthalpy change in the process is \(23.4 \,k\,J\, mol ^{-1}\). The enthalpy change for the vapourisation of \(85 g\) of \(NH _{3}\) under the same conditions is \(.....\, kJ .\)JEE Mains 2022 Medium
- The first ionization enthalpies of \(Be , B , N\) and \(O\) follow the order\(....\)JEE Mains 2022 Medium
- In the following reaction
Aldehyde \(+\) Alcohol \(\xrightarrow{{HCl}}\) Acetal
\(HCHO\) \(^tBuOH\)
\(CH_3CHO\) \(MeOH\) The best combination isJEE Mains 2019 Medium - Given below are two statements:
Statement I: Fructose does not contain an aldehydic group but still reduces Tollen's reagent
Statement II: In the presence of base, fructose undergoes rearrangement to give glucose.
In the light of the above statements, choose the correct answer from the options given belowJEE Mains 2025 Easy
More PYQs from JEE Mains
- The number of chiral carbons present in sucrose isJEE Mains 2020 Medium
- A sample of gas at temperature \(\mathrm{T}\) is adiabatically expanded to double its volume. Adiabatic constant for the gas is \(\gamma=3 / 2\). The work done by the gas in the process is _______. \((\mu=1 \mathrm{~mole})\)JEE Mains 2024 Hard
- When a car is at rest, its driver sees rain drops falling on it vertically. When driving the car with speed \(v,\) he sees that rain drops are coming at an angle \(60^{\circ}\) from the horizontal. On further increasing the speed of the car to \((1+\beta) v ,\) this angle changes to \(45^{\circ} .\) The value of \(\beta\) is close to\(......\)JEE Mains 2020 Hard
- For the four sets of three measured physical quantities as given below. Which of the following options is correct ? \((i)\) \(\mathrm{A}_{1}=24.36, \mathrm{B}_{1}=0.0724, \mathrm{C}_{1}=256.2\) \((ii)\) \(\mathrm{A}_{2}=24.44, \mathrm{B}_{2}=16.082, \mathrm{C}_{2}=240.2\) \((iii)\) \(\mathrm{A}_{3}=25.2, \mathrm{B}_{3}=19.2812, \mathrm{C}_{3}=236.183\) \((iv)\) \(\mathrm{A}_{4}=25, \mathrm{B}_{4}=236.191, \mathrm{C}_{4}=19.5\)JEE Mains 2020 Hard
- If \(\int \limits_{\frac{1}{3}}^3\left|\log _e x\right| d x=\frac{m}{n} \log _e\left(\frac{n^2}{e}\right)\), where \(m\) and \(n\) are coprime natural numbers, then \(m ^2+ n ^2-5\) is equal to \(............\).JEE Mains 2023 Hard
- A gas is compressed adiabatically, which one of the following statement is NOT true.JEE Mains 2023 Medium